How do you not stress?

As if the 2ww wasn't hard enough I had a dog emergency last night which resulted in a sleepless night and a vet visit this morning (dog is going to be okay) so now I am more worried that this added stress is going to effect my chances this cycle. TTC baby #1 and this is my 4th cycle... now I just have to wait and see if AF comes next week. 😑